Plupload 2.x in WordPress 3.9

Plupload is the library that powers most of the file upload interfaces in WordPress, and in 3.9 we’ve updated the bundled library to version 2.1.1 (#25663). Here are some of things that have changed, which may affect WordPress plugins and themes.

If you’re using direct references to Plupload’s runtime .js files, such as plupload.html5.js, note that these files are now gone. The following script handles were removed: plupload-html5, plupload-flash, plupload-silverlight and plupload-html4. If you need to enqueue the Plupload library, just use the plupload handle.

If you’re constructing your own Plupload settings array vs. using wp_plupload_default_settings() and/or the _wpPluploadSettings object, note that some of the arguments have changed, most notably:

flash_swf_url should point to the new Moxie.swf file (See update)

Similarly, silverlight_xap_url should use the new Moxie.xap (See update)

The multiple_queues argument is no longer used

The max_file_size key has been moved to the filters array

The filters array now supports multiple keys, and the list of file types array has been moved to its mime_types key

Plupload version 2.1.1 has also added some exciting new options and methods, which you can find in the updated documentation.

As a result of this update in WordPress 3.9 we were able to add drag and drop upload support directly to our TinyMCE editor (#19845), and we’ve also added a new boolean flag to wp_editor(), which you can use to enable drag and drop upload support in your own instance of the editor (#27465):

Thank you for the link to the manual instructions. My blog is experiencedbadmom.com tho, not experiencedbadmom.com/wordpress/ – does that matter? Also, one of the steps says to deactivate plugins – how am I to deactivate plugins if I can’t even get into my dashboard? GoDaddy is my host – do I deactivate plugins somewhere on their servers?

well I am using pluploader library in my plugin and when try ‘plupload’ handle to use shipped scripts it not applying to my uploader object, even I can see libraries are loading. Any help will be much appreciated.